NGS-Based Assay of Blood Samples of Sepsis Patients for Rapid Bacterial Identification

NCT ID: NCT06141395

Last Updated: 2024-03-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-11-16

Study Completion Date

2024-03-14

Brief Summary

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Rapid detection of microorganisms is a promising approach towards early administration of appropriate antibiotics for sepsis. This study aims to investigate the potential of a new NGS platform for the rapid diagnosis of circulating bacteria in blood.

Detailed Description

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Early start of antimicrobials is the cornerstone of management of critically ill patients. The appropriate time window for this early intervention may vary greatly, but it is considered to be one to 3 hours from hospital admission. However, the choice of the antimicrobials for early intervention relies on empirical selection and may several times be inappropriate due to the emergence of antimicrobial resistance. The only way to overcome this difficulty is guidance through early microbial identification and antibiotic susceptibility testing (AST). However, blood cultures are positive in almost 20% of critically ill patients and AST may delay as much as 72 hours.

This means that another type of approach is warranted which will tackle the major limitation of standard-of-care (SoC) microbiology, namely, the need to incubate whole blood into flasks enriched with growth media which necessitates subculturing once a blood flask turns positive. It is evident that rapid identification of the pathogen followed by AST using whole blood without the need of blood culture can be a major advance in the diagnostic field.

The present study is based on previous analysis of ethylenediaminetetraacetic acid (EDTA) whole blood coming from patients with known bloodstream infection. Next generation sequencing (NGS) of bacterial DNA extracted from whole blood managed to identify the correct pathogen. This study is aiming at the validation of this NGS -based assay in a broader number of patients.

Conditions

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Pneumonia Acute Pyelonephritis Bacteremia Biliary Tract Infection

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with an infection

Patients with high suspicion of infection with at least one sign of the quick Sequential Organ Failure Assessment (qSOFA) score

NGS-based assay for bacterial identification

Intervention Type DIAGNOSTIC_TEST

A total volume of 26ml of whole blood will be sampled from each enrolled patient for three consecutive days. This will be used for Standard-of-Care (SoC) culture and Next Generation Sequencing (NGS), for identification of circulating microorganisms.

Interventions

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NGS-based assay for bacterial identification

A total volume of 26ml of whole blood will be sampled from each enrolled patient for three consecutive days. This will be used for Standard-of-Care (SoC) culture and Next Generation Sequencing (NGS), for identification of circulating microorganisms.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Age equal to or above 18 years.
* Both genders.
* Written informed consent provided by the patient or by one first-degree relative/spouse in case of patients unable to consent.
* Patients with high suspicion of infection with at least one sign of the quick SOFA score (i.e. one of mental confusion, more than 22 breaths per minute or systolic blood pressure less than 100mmHg).

Exclusion Criteria

* Age below 18 years.
* Denial for written informed consent.
* Patients already receiving antibiotics.
* Pregnancy or lactation.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The BioArte

UNKNOWN

Sponsor Role collaborator

Hellenic Institute for the Study of Sepsis

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Evangelos Giamarellos-Bourboulis, MD,PhD

Role: STUDY_CHAIR

Hellenic Institute for the Study of Sepsis

Locations

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4th Department of Internal Medicine,"Attikon" University Hospital, National and Kapodistrian University of Athens, Medical School

Chaïdári, Attica, Greece

Site Status

1st Department of Internal Medicine, General Hospital of Eleusis THRIASIO

Athens, , Greece

Site Status

3rd University Department of Internal Medicine, General Hospital of Chest Diseases of Athens SOTIRIA

Athens, , Greece

Site Status

3rd Department of Internal Medicine, General Hospital of Nikaia AGIOS PANTELEIMON

Nikaia, , Greece

Site Status

Countries

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Greece

Other Identifiers

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BIOARTE

Identifier Type: -

Identifier Source: org_study_id

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